National Centre of Competence in Research PlanetS
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Project 3.2: Exoplanet atmospheres at high spectral resolution

Project 3.2 is led by Christophe Lovis. This project focuses on the observational study of exoplanet atmospheres by means of ground-based high-resolution spectroscopy. The goal is to probe the chemical composition and atmospheric structure of a variety of objects, ranging from hot Jupiters to temperate Earth-like planets. High-resolution spectroscopy circumvents the practical difficulties caused by Earth’s atmosphere and rivals space-based spectrophotometry in terms of exoplanet characterisation potential. It reveals the physical properties of atmospheres by resolving spectral line profiles, which constrain chemical abundances, temperature profiles, global circulation patterns, and planet spin rate. Two main approaches will be pursued in this project: transmission spectroscopy of transiting exoplanets and spatially-resolved spectroscopy of very nearby (non-transiting) exoplanets using extreme adaptive optics (AO).

High-resolution transmission spectrum of the warm Neptune HAT-P-11b obtained with CARMENES around the near-infrared metastable helium triplet. Absorption by the planet continuum has been removed. A significant excess absorption from an extended upper atmosphere of helium is detected at 21 sigma. The transmission spectrum (in black) is plotted in the planet rest frame, and is averaged over two independent epochs (in blue and orange). Our best fit model is in red.

Authors:
Marconi, A.; Allende Prieto, C.; Amado, P. J.; Amate, M.; Augusto, S. R.; Becerril, S.; Bezawada, N.; Boisse, I.; Bouchy, F.; Cabral, A.; Chazelas, B.; Cirami, R.; Coretti, I.; Cristiani, S.; Cupani, G.; de Castro Leão, I.; de Medeiros, J. R.; de Souza, M. A. F.; Di Marcantonio, P.; Di Varano, I.; D'Odorico, V.; Drass, H.; Figueira, P.; Fragoso, A. B.; Fynbo, J. P. U.; Genoni, M.; González Hernández, J. I.; Haehnelt, M.; Hughes, I.; Huke, P.; Kjeldsen, H.; Korn, A. J.; Landoni, M.; Liske, J.; Lovis, C.; Maiolino, R.; Marquart, T.; Martins, C. J. A. P.; Mason, E.; Monteiro, M. A.; Morris, T.; Murray, G.; Niedzielski, A.; Oliva, E.; Origlia, L.; Pallé, E.; Parr-Burman, P.; Parro, V. C.; Pepe, F.; Piskunov, N.; Rasilla, J. L.; Rees, P.; Rebolo, R.; Riva, M.; Rousseau, S.; Sanna, N.; Santos, N. C.; Shen, T. -C.; Sortino, F.; Sosnowska, D.; Sousa, S.; Stempels, E.; Strassmeier, K.; Tenegi, F.; Tozzi, A.; Udry, S.; Valenziano, L.; Vanzi, L.; Weber, M.; Woche, M.; Xompero, M.; Zackrisson, E.
Publication:
Proceedings of the SPIE, Volume 10702, id. 107021Y 16 pp. (2018).
Copyright ©
(c) 2018: SPIE. Downloading of the abstract is permitted for personal use only.

2018 June

Authors:
Allart, Romain; Lovis, Christophe
Publication:
Diversis Mundi: The Solar System in an Exoplanetary Context, held 5-9 March, 2018 at ESO, Santiago, Chile. Online at http://www.eso.org/sci/meetings/2018/ops2018.html, id.2

2018 June

Authors:
Martins, J. H. C.; Figueira, P.; Santos, N. C.; Melo, C.; Muñoz, A. Garcia; Faria, J.; Pepe, F.; Lovis, C.
Publication:
Monthly Notices of the Royal Astronomical Society, Volume 478, Issue 4, p.5240-5262
Copyright ©
2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

2018 July

Authors:
Oza, Apurva V.; Johnson, Robert E.; Arras, Phil; Thomas, Nicolas; Schmidt, Carl; Demory, Brice-Olivier; Mordasini, Christoph; Wyttenbach, Aurelien; Schneider, Nick; Bourrier, Vincent; Allart, Romain; Ehrenreich, David; Dubois, David; Saxena, Prabal
Publication:
European Planetary Science Congress 2018, held 16-21 September 2018 at TU Berlin, Berlin, Germany, id.EPSC2018-1199

2018 August

Authors:
Bourrier, V.; Lecavelier des Etangs, A.; Ehrenreich, D.; Sanz-Forcada, J.; Allart, R.; Ballester, G. E.; Buchhave, L. A.; Cohen, O.; Deming, D.; Evans, T. M.; García Muñoz, A.; Henry, G. W.; Kataria, T.; Lavvas, P.; Lewis, N.; López-Morales, M.; Marley, M.; Sing, D. K.; Wakeford, H. R.
Publication:
Astronomy & Astrophysics, Volume 620, id.A147, 14 pp.

2018 November

Authors:
Hoeijmakers, H. Jens; Ehrenreich, David; Heng, Kevin; Kitzmann, Daniel; Grimm, Simon L.; Allart, Romain; Deitrick, Russell; Wyttenbach, Aurélien; Oreshenko, Maria; Pino, Lorenzo; Rimmer, Paul B.; Molinari, Emilio; Di Fabrizio, Luca
Publication:
Nature, Volume 560, Issue 7719, p.453-455

2018 July

Authors:
Mansfield, Megan; Bean, Jacob L.; Oklopčić, Antonija; Kreidberg, Laura; Désert, Jean-Michel; Kempton, Eliza M. -R.; Line, Michael R.; Fortney, Jonathan J.; Henry, Gregory W.; Mallonn, Matthias; Stevenson, Kevin B.; Dragomir, Diana; Allart, Romain; Bourrier, Vincent
Publication:
The Astrophysical Journal Letters, Volume 868, Issue 2, article id. L34, 6 pp. (2018).

2018 November

Authors:
Pino, Lorenzo; Ehrenreich, David; Allart, Romain; Lovis, Christophe; Brogi, Matteo; Malik, Matej; Nascimbeni, Valerio; Pepe, Francesco; Piotto, Giampaolo
Publication:
Astronomy & Astrophysics, Volume 619, id.A3, 18 pp.

2018 September

Authors:
Allart, R.; Bourrier, V.; Lovis, C.; Ehrenreich, D.; Spake, J. J.; Wyttenbach, A.; Pino, L.; Pepe, F.; Sing, D. K.; Lecavelier des Etangs, A.
Publication:
Science, Volume 362, Issue 6421, pp. 1384-1387 (2018).
Copyright ©
(c) 2018: Science

2018 November

Authors:
Bourrier, Vincent; Allart, Romain; Dos Santos, Leonardo; Ehrenreich, David; Lavie, Baptiste; Lecavelier des Etangs, Alain; Turbet, Martin
Publication:
HST Proposal. Cycle 27, ID. #15859

2019 May

Authors:
Hoeijmakers, Jens; Ehrenreich, David; Kitzmann, Daniel; Allart, Romain; Grimm, Simon; Seidel, Julia Victoria; Wyttenbach, Aurelien; Pino, Lorenzo; Nielsen, Louise; Fisher, Chloe; Rimmer, Paul; Bourrier, Vincent; Cegla, Heather; Lavie, Baptiste; Lovis, Christophe; Patzer, Beate; Stock, Joachim; Pepe, Francesco; Heng, Kevin
Publication:
American Astronomical Society, Extreme Solar Systems 4, id. 500.03. Bulletin of the American Astronomical Society, Vol. 51, No. 6
Copyright ©
Copyright 2019 the American Astronomical Society

2019 July

Authors:
Boucher, Anne; Darveau-Bernier, Antoine; Lafrenière, David; Allart, Romain; Pelletier, Stefan; Cook, Neil; Artigau, Étienne; Lovis, Christophe; Benneke, Björn; Doyon, René; Moutou, Claire
Publication:
American Astronomical Society, Extreme Solar Systems 4, id. 326.09. Bulletin of the American Astronomical Society, Vol. 51, No. 6
Copyright ©
Copyright 2019 the American Astronomical Society

2019 July

Authors:
Allart, Romain; Bourrier, Vincent; Lovis, Christophe
Publication:
American Astronomical Society, Extreme Solar Systems 4, id. 326.13. Bulletin of the American Astronomical Society, Vol. 51, No. 6
Copyright ©
Copyright 2019 the American Astronomical Society

2019 July

Authors:
Lovis, Christophe
Publication:
The Very Large Telescope in 2030, held 17-20 June, 2019 at ESO Garching, Germany. Online at https://www.eso.org/sci/meetings/2019/VLT2030.html, vlt2030, id.41

2019 June

Authors:
Bourrier, Vincent; Ehrenreich, David; Allart, Romain; Lovis, Christophe; Sing, David K.; Spake, Jessica
Publication:
HST Proposal. Cycle 26, ID. #15694

2019 February

Authors:
Auclair-Desrotour, P.; Leconte, J.; Bolmont, E.; Mathis, S.
Publication:
Astronomy & Astrophysics, Volume 629, id.A132, 27 pp.

2019 August

Authors:
Astoul, Aurélie; Mathis, Stéphane; Baruteau, Clément; Gallet, Florian; Strugarek, Antoine; Augustson, Kyle; Brun, Allan Sacha; Bolmont, Emeline
Publication:
American Astronomical Society, Extreme Solar Systems 4, id. 319.08. Bulletin of the American Astronomical Society, Vol. 51, No. 6
Copyright ©
Copyright 2019 the American Astronomical Society

2019 July

Authors:
Bolmont, E.; Gallet, F.; Mathis, S.; Charbonnel, C.; Amard, L.
Publication:
EAS Publications Series, Volume 82, 2019, pp.71-79

2019 May

Authors:
Allart, R.; Bourrier, V.; Lovis, C.; Ehrenreich, D.; Aceituno, J.; Guijarro, A.; Pepe, F.; Sing, D. K.; Spake, J. J.; Wyttenbach, A.
Publication:
Astronomy & Astrophysics, Volume 623, id.A58, 6 pp.

2019 February

Authors:
Agol, Eric; Carey, Sean; Delrez, Laetitia; Demory, Brice-Olivier; Fabrycky, Dan; Gillon, Michael; Grimm, Simon; Ingalls, Jim; Malhotra, Renu; Morris, Brett; Raymond, Sean; Triaud, Amaury; Bolmont, Emeline; Burgasser, Adam
Publication:
Spitzer Proposal ID #14223

2019 February

Authors:
Seidel, J. V.; Ehrenreich, D.; Pino, L.; Bourrier, V.; Lavie, B.; Allart, R.; Wyttenbach, A.; Lovis, C.
Publication:
Astronomy & Astrophysics, Volume 633, id.A86, 24 pp.

2019 December

Authors:
Astoul, A.; Mathis, S.; Baruteau, C.; Gallet, F.; Strugarek, A.; Augustson, K. C.; Brun, A. S.; Bolmont, E.
Publication:
Astronomy & Astrophysics, Volume 631, id.A111, 13 pp.

2019 October

Authors:
Turbet, Martin; Ehrenreich, David; Lovis, Christophe; Bolmont, Emeline; Fauchez, Thomas
Publication:
Astronomy & Astrophysics, Volume 628, id.A12, 8 pp.

2019 July

Authors:
Seidel, J. V.; Ehrenreich, D.; Wyttenbach, A.; Allart, R.; Lendl, M.; Pino, L.; Bourrier, V.; Cegla, H. M.; Lovis, C.; Barrado, D.; Bayliss, D.; Astudillo-Defru, N.; Deline, A.; Fisher, C.; Heng, K.; Joseph, R.; Lavie, B.; Melo, C.; Pepe, F.; Ségransan, D.; Udry, S.
Publication:
Astronomy & Astrophysics, Volume 623, id.A166, 10 pp.

2019 February

Authors:
Bouchy, Francois; Doyon, René; Pepe, Francesco; Wildi, Francois; Blind, Nicolas; Artigau, Etienne; Malo, Lison
Publication:
EPSC-DPS Joint Meeting 2019, held 15-20 September 2019 in Geneva, Switzerland, id. EPSC-DPS2019-1860

2019 August

Authors:
Turbet, Martin; Ehrenreich, David; Bolmont, Emeline; Lovis, Christophe; Fauchez, Thomas
Publication:
EPSC-DPS Joint Meeting 2019, held 15-20 September 2019 in Geneva, Switzerland, id. EPSC-DPS2019-93

2019 August

Authors:
Boehle, A.; Quanz, S. P.; Lovis, C.; Ségransan, D.; Udry, S.; Apai, D.
Publication:
Astronomy & Astrophysics, Volume 630, id.A50, 17 pp.

2019 September

Authors:
Hoeijmakers, Jens; Ehrenreich, David; Kitzmann, Daniel; Allart, Romain; Grimm, Simon; Seidel, Julia; Wyttenbach, Aurélien; Pino, Lorenzo; Nielsen, Louise; Fisher, Chloe; Rimmer, Paul; Bourrier, Vincent; Cegla, Heather; Lavie, Baptiste; Lovis, Christophe; Patzer, Beate; Stock, Joachim; Pepe, Francesco; Heng, Kevin
Publication:
EPSC-DPS Joint Meeting 2019, held 15-20 September 2019 in Geneva, Switzerland, id. EPSC-DPS2019-1405

2019 August

Authors:
Allart, Romain; Bourrier, Vincent; Lovis, Christophe; Ehrenreich, David; Spake, Jessica; Wyttenbach, Aurélien; Pino, Lorenzo; Pepe, Francesco; Sing, David; Lecavelier des Etangs, Alain; Aceituno, Jesus; Guijarro, Ana
Publication:
EPSC-DPS Joint Meeting 2019, held 15-20 September 2019 in Geneva, Switzerland, id. EPSC-DPS2019-1529

2019 August

Authors:
Bolmont, Emeline; Oza, Apurva; Blanco-Cuaresma, Sergi; Mordasini, Christoph; Auclair-Desrotour, Pierre; Leleu, Adrien
Publication:
EPSC-DPS Joint Meeting 2019, held 15-20 September 2019 in Geneva, Switzerland, id. EPSC-DPS2019-1590

2019 August

Authors:
Tobie, Gabriel; Auclair-Desrotour, Pierre; Bolmont, Emeline; Dumoulin, Caroline; Grasset, Olivier; Mocquet, Antoine
Publication:
EPSC-DPS Joint Meeting 2019, held 15-20 September 2019 in Geneva, Switzerland, id. EPSC-DPS2019-1531

2019 August

Authors:
Auclair-Desrotour, Pierre; Leconte, Jérémy; Bolmont, Emeline; Mathis, Stéphane
Publication:
EPSC-DPS Joint Meeting 2019, held 15-20 September 2019 in Geneva, Switzerland, id. EPSC-DPS2019-1352

2019 August

Authors:
Gallet, F.; Charbonnel, C.; Amard, L.; Brun, S.; Palacios, A.; Mathis, S.; Bolmont, E.
Publication:
EAS Publications Series, Volume 82, 2019, pp.59-69

2019 May

Authors:
Hoeijmakers, H. J.; Ehrenreich, D.; Kitzmann, D.; Allart, R.; Grimm, S. L.; Seidel, J. V.; Wyttenbach, A.; Pino, L.; Nielsen, L. D.; Fisher, C.; Rimmer, P. B.; Bourrier, V.; Cegla, H. M.; Lavie, B.; Lovis, C.; Patzer, A. B. C.; Stock, J. W.; Pepe, F. A.; Heng, Kevin
Publication:
Astronomy & Astrophysics, Volume 627, id.A165, 26 pp.

2019 June

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